Results 1 to 5 of 5

Math Help - intergration (double)

  1. #1
    Newbie
    Joined
    Jul 2007
    Posts
    17

    intergration (double)

    evaluate the intergral

    3 2
    (integral sign) (intergral sign) (2y3+6xy+x2+1)dydx
    0 1


    so its like 0<x<3 and 1<y<2 (i think)


    any help?!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Global Moderator

    Joined
    Nov 2005
    From
    New York City
    Posts
    10,616
    Thanks
    10
    Quote Originally Posted by turion645344 View Post
    evaluate the intergral

    3 2
    (integral sign) (intergral sign) (2y3+6xy+x2+1)dydx
    0 1


    so its like 0<x<3 and 1<y<2 (i think)


    any help?!
    \int_0^3 \int_1^2 2y^3 + 6xy + x^2 +1 \ dy \ dx

    \int_0^3 \frac{1}{2}y^4+3xy^2+x^2y+y \big|_1^2 \ dx

    \int_0^3 8+12x+2x^2+2 - \frac{1}{2} - 3x - x^2 - 1 \ dx

    You can do it fron there.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Jul 2007
    Posts
    17
    when you take them away, i get

    3
    (intergration sign) x2+9x+8.5 dx

    0

    when
    3
    (1/3x3 + 9/2x2 + 8.5x)
    0

    and then 9+40.5+25.5 so an answer of 75.
    Last edited by turion645344; July 11th 2007 at 08:47 AM.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Newbie
    Joined
    Jul 2007
    Posts
    17
    the answer of 75. is this correct???
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Global Moderator

    Joined
    Nov 2005
    From
    New York City
    Posts
    10,616
    Thanks
    10
    Quote Originally Posted by turion645344 View Post
    the answer of 75. is this correct???
    Yes
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. intergration double check
    Posted in the Calculus Forum
    Replies: 2
    Last Post: May 7th 2010, 07:40 PM
  2. double intergration
    Posted in the Calculus Forum
    Replies: 5
    Last Post: March 15th 2010, 04:20 AM
  3. Double Intergration dydx or dxdy
    Posted in the Calculus Forum
    Replies: 7
    Last Post: November 3rd 2009, 06:33 PM
  4. double intergration 2
    Posted in the Calculus Forum
    Replies: 4
    Last Post: July 11th 2007, 10:11 AM
  5. Double intergration problem
    Posted in the Calculus Forum
    Replies: 4
    Last Post: October 29th 2006, 08:45 AM

Search Tags


/mathhelpforum @mathhelpforum